Efficient way to delete multiple rows with Linq to Entity?

Hi I'm looking for efficient way to delete multiple records at once. I'm deleting 400 records and it takes 8-15 seconds. Here is my code

using (var entities = new Entity())
   {                               
       foreach (Item item in entities.Items.Where(x => x.id == id))
              entities.DeleteObject(item);
       entities.SaveChanges();
   }